/*
 * Copyright 2012-2022 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.boot.actuate.management;

import org.springframework.boot.actuate.endpoint.annotation.ReadOperation;
import org.springframework.boot.actuate.endpoint.web.WebEndpointResponse;
import org.springframework.boot.actuate.endpoint.web.annotation.EndpointWebExtension;
import org.springframework.boot.actuate.management.ThreadDumpEndpoint.ThreadDumpDescriptor;
import org.springframework.boot.actuate.management.ThreadDumpEndpoint.ThreadDumperUnavailableException;

/**
 * {@link EndpointWebExtension @EndpointWebExtension} for the {@link ThreadDumpEndpoint}.
 *
 * @author Moritz Halbritter
 * @since 3.0.0
 */
@EndpointWebExtension(endpoint = ThreadDumpEndpoint.class)
public class ThreadDumpEndpointWebExtension {

	private final ThreadDumpEndpoint delegate;

	public ThreadDumpEndpointWebExtension(ThreadDumpEndpoint delegate) {
		this.delegate = delegate;
	}

	@ReadOperation
	public WebEndpointResponse<ThreadDumpDescriptor> threadDump() {
		try {
			return new WebEndpointResponse<>(this.delegate.threadDump());
		}
		catch (ThreadDumperUnavailableException ex) {
			return new WebEndpointResponse<>(WebEndpointResponse.STATUS_SERVICE_UNAVAILABLE);
		}
	}

	@ReadOperation(produces = "text/plain;charset=UTF-8")
	public WebEndpointResponse<String> textThreadDump() {
		try {
			return new WebEndpointResponse<>(this.delegate.textThreadDump());
		}
		catch (ThreadDumperUnavailableException ex) {
			return new WebEndpointResponse<>(WebEndpointResponse.STATUS_SERVICE_UNAVAILABLE);
		}
	}

}
